@[BnC]MissingNo.
The manufacturer named the product R4i Gold, though there were already a few others out there, this one is known as R4ids.com Gold or R4ids Gold. It's a poor product, I admit, but it is one of the most recently updated R4i's that are compatible with DSi 1.4 out of the box.

I owned one before I got my AK2i, and I would never recommend this thing to a new buyer. It is an AK2i clone (Danny Phantom icon) but I couldn't get any alternative firmware, even the notorious cracked AKAIO, running on it. Which doesn't bother me so much since the official firmware is now updated far beyond that version of AKAIO.
If I had actually paid less for this card than I paid for my AK2i I would give it away or bury it in my legacy stuff. But, I actually paid twice as much for my R4ids Gold flashcart ($16) because I also paid for DHL shipping (+$24) from Shenzhen, China to Arizona.

There isn't a DSi cart that can run Wood atm (unless you count the Acekard2i which has similar firmware).
Cheapest cart that can currently run Wood is this for $3.30. It isn't SDHC or DSi compatible though, but then again, nothing that runs a non-hacked Wood R4 is.